Vitamine solution



Patented Nov.-l3, 1923..

ISAAC r. namus; on Tue I enore once i. OE, NEW YORK.

VITAMIN E SOLUTION.

No Drawing.

To all whom it may concern: I

Be it known that I, ISAAC F. HAnRIs, a citizen of the United States and a resident of Tuckahoe, Westchester dounty, State of New 'York, have invented an Improvement in Vitamins Solutions, of whichthe followingiis a specification.

y invention relates to vitamine preparatlons, part cularly'in liquid form, and aims to rovide a liquid vitamine reparation w ich shall be stable, pure a-n uniform, and which shall be free from undesirable or harmful by-products and diluents. It is a further object of the present invention to provide a simple and certain method ,of rendering stable and uniform aqueous solutions of vitamins bodies of the character referred to above.

By Waysof example, I shall describe illustrative embodiments of the product and method of my invention in the accompanying specification, it being understood that the following detailed descriptions of such illustrative embodiments are merely for purposes of illustration, and that the invene tion is not limited to such illustrative em-- bodiments.

For my.vitamine body I use a watersoluble vitamine substance, such, for example, as a vitamine-derived from yeast cells,m0re particularl the vitamine? body described and claimed in my copending application, Serial No. 347,503, filed December This vitamine substance is a light, yellowsbrown, very hygroscopic powder, having an odor and taste similar to extract of beef. It is readily soluble in cold water,

producing a perfectly clear solution. It is freely soluble in 52% ethyl alcohol, but is less soluble in ethyl alcohol stronger than 80%, and substantially insoluble in absolute alcohol. Its aqueous solutions are light have other properties of a mixture, of I tones, propeptones and ammo acids.

. brown to dark-brown, accordin to the coneentration of the solution. ts solutions have a taste similar to extract of beef and i t 1s substantially free from oagula'ble proteins and 'ves reactions for he amino groups, but oes not vs the bluret reaction,

Solutions of th1s product give copious precipitates with phospho-tungstic' acid, which, recipitate everything utiolis however, does not from the solution. ts aqueous so mine Application filed December 26, 1919. Serial lilo. 347,501.

are also partly precipitated by solutions of barium hydroxide, silver nitrate, mercuric chloride or lead acetate. The dry powder,

when burned, leaves about 12-15% of ash-.

vOne method of preparing the foregoing vltamine substance as set forth in my co pending application referred to above comprises, briefiy,'boiling said cells with water acidified with about one percent of acetic acid filtering, drying the filtrate in vacuo stances do not last'long, but readily decompose and spoil.

I have discovered that'if to an aqueous solution of a water-soluble vitamins there is added an organic preserviii as ethyl alcohol, preferabl at out eighteen percent by volume of ethy alcohol, .a solution is obtained which possesses unexpectedly superior lasting qualities, the solution being very stable and of a uniform nature so as to be readily and conveniently administered to atien I have iscovered that the presence of the preservative agent, such as the ethyl alco* 'hol, especially in the amount set forth above, has no harmful action of an sort upon the vitamine body, but acts so ely as a beneficial preservative agent; The addition of the alcohol, furthermore, does not render the aqueous solution less clear and permanent, the solution remaining of ayellowish-brown color throu bout, the color increasin in density as t e concentration of the so ution in vitamine substance increases.

What ll claim is:

1: A compositiomof matter com rising an aqueous solution of, a biologica y active 6 vitamine body containing an amount of ethyl alc o1 suficient to exercise a substantial preservative action upon saidfivitabody. i 2. A composition of matter comprising an agent, such aqueous solution of a biologically active 4. A composition of matter comprising 10 tamine body containing about eighteen an cqueous solution of a biologically active percent of ethyl alcohol. v vitamine body, derived from living yeast 3. A composition of matter comprising cells, containing about eighteen percent of an aqueous solution of a biologically active ethyl alcohol. I vitamine body, derived from living yeast In testimony whereof, I have signed my 15 cells, containing ethyl alcohol sufficient to name to this'specification this 24cth day of 'exercise a substantial preservative action December, 1919.

upon said vitamine body. I ISAAC F HARRIS. 

